GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 158 539 009 patent documents

This week's update (13/09/2024 12:00 CET):

155 661 new documents added

1 150 346 documents amended

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EP 0229279 B1 19900523 - MIXTURE OF MATERIALS FOR ABSORPTION HEAT-TRANSFORMERS

Title (en)

MIXTURE OF MATERIALS FOR ABSORPTION HEAT-TRANSFORMERS

Publication

EP 0229279 B1 19900523 (DE)

Application

EP 86116550 A 19861128

Priority

DE 3543171 A 19851206

Abstract (en)

[origin: US4779675A] The pair of substances for absorption heat transformers consists of methanol and tetraethylene glycol dimethyl ether.

IPC 1-7

C09K 5/04

IPC 8 full level

C09K 5/04 (2006.01)

CPC (source: EP US)

C09K 5/047 (2013.01 - EP US)

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

DE 3543171 A1 19870611; DE 3671461 D1 19900628; EP 0229279 A2 19870722; EP 0229279 A3 19870805; EP 0229279 B1 19900523; JP S62138580 A 19870622; US 4779675 A 19881025

DOCDB simple family (application)

DE 3543171 A 19851206; DE 3671461 T 19861128; EP 86116550 A 19861128; JP 28909686 A 19861205; US 93801986 A 19861204